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- sudo mdadm --create --verbose /dev/md0 --level=6 --raid-devices=4 /dev/sd[b-e]
- cat /proc/mdstat
- sudo mdadm --readwrite /dev/md0
- sudo mdadm --detail --scan >> /etc/mdadm/mdadm.conf
- echo check > /sys/block/md0/md/sync_action
- sudo pvcreate /dev/md0
- sudo pvdisplay
- sudo vgcreate vgraid6 /dev/md0
- sudo lvcreate -l 100%FREE -n lvHD vgraid6
- sudo mkfs.ext4 -v /dev/vgraid6/lvHD
- # mdadm.conf
- #
- # Please refer to mdadm.conf(5) for information about this file.
- #
- #DEVICE partitions containers
- ...
- CREATE owner=root group=disk mode=0660 auto=yes
- MAILADDR root
- ARRAY /dev/md0 metadata=1.2 name=media:0 UUID=cb127a0b:ad4eb61d:e0ba8f82:db4b062d
- $ mdadm --stop --scan
- $ mdadm --assemble --scan
- $ sudo mdadm --assemble /dev/md0 /dev/sd[b-e]
- mdadm: Cannot assemble mbr metadata on /dev/sdb
- mdadm: /dev/sdb has no superblock - assembly aborted
- $ sudo mdadm --examine /dev/sd[b-e]
- /dev/sdb:
- MBR Magic : aa55
- Partition[0] : 4294967295 sectors at 1 (type ee)
- /dev/sdc:
- MBR Magic : aa55
- Partition[0] : 4294967295 sectors at 1 (type ee)
- /dev/sdd:
- MBR Magic : aa55
- Partition[0] : 4294967295 sectors at 1 (type ee)
- /dev/sde:
- MBR Magic : aa55
- Partition[0] : 4294967295 sectors at 1 (type ee)
- $ cat /proc/mdstat
- Personalities :
- unused devices: <none>
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